Do you want to know how to develop your skillset to become a Java Rockstar?

Subscribe to our newsletter to start Rocking right now!

To get you started we give you our best selling eBooks for FREE!


1. JPA Mini Book

2. JVM Troubleshooting Guide

3. JUnit Tutorial for Unit Testing

4. Java Annotations Tutorial

5. Java Interview Questions


and many more ....



Explicit Implicit Conversion


One of the most common pattern we use on our day to day is converting objects from one type of object to another. The reasons for that are varied; one reason is to distinguish between external and internal implementations, another reason would be to enrich incoming data with additional information or to filter out some aspects of the data before sending ...

Read More »

Top 50 Java Thread Interview Questions Answers for Freshers, Experienced Programmers


You go to any Java interview, senior or junior, experience or freshers,  you are bound to see couple of questions from thread, concurrency and multi-threading. In fact this built-in concurrency support is one of the strongest point of Java programming language and helped it to gain popularity among enterprise world and programmers equally. Most of lucrative Java developer position demands ...

Read More »

ZooKeeper, Curator and How Microservices Load Balancing Works


How Zookeeper makes sure that every worker happily gets some stuff to do from job delegating manager. Apache ZooKeeper is a tool to register, manage and discover services working on different machines. It is an indispensable member in technology stack when we have to deal with distributed system with many nodes which need to know where their dependencies are launched. ...

Read More »

SpringBoot: Introducing SpringBoot


SpringBoot…there is a lot of buzz about SpringBoot nowadays. So what is SpringBoot? SpringBoot is a new spring portfolio project which takes opinionated view of building production-ready Spring applications by drastically reducing the amount of configuration required. Spring Boot is taking the convention over configuration style to the next level by registering the default configurations automatically based on the classpath ...

Read More »

Evaluating persistent, replicated message queues


Message queues are useful in a number of situations; for example when we want to execute a task asynchronously, we enqueue it and some executor eventually completes it. Depending on the use case, the queues can give various guarantees of message persistence and delivery. For some use-cases, it is enough to have an in-memory message queue. For others, we want ...

Read More »

If BigDecimal is the answer, it must have been a strange question


Overview Many developers have determined that BigDecimal is the only way to deal with money.  Often they site that by replacing double with BigDecimal, they fixed a bug or ten.  What I find unconvincing about this is that perhaps they could have fixed the bug in the handling of double and that the extra overhead of using BigDecimal. My comparison, ...

Read More »

Android RecyclerView


RecyclerView is one of the two UI widgets introduced by the support library in Android L. In this post I will describe how we can use it and what’s the difference between this widget and the “classic” ListView. This new widget is more flexible than the ListView but it introduces some complexities. As we are used RecyclerView introduces a new ...

Read More »

Gearing up for JavaOne 2014 !


Hold that thought! Yeah…I wish I was presenting at Java One 2014 – but I am only worthy of doing that in my dreams right now! But nothing is stopping me from following Java One and tracking sessions/talks about my favorite topics. I am hoping Oracle would make the 2014 talks available online for mortals like us just like it did for ...

Read More »

You Probably Don’t Need a Message Queue


I’m a minimalist, and I don’t like to complicate software too early and unnecessarily. And adding components to a software system is one of the things that adds a significant amount of complexity. So let’s talk about message queues. Message Queues are systems that let you have fault-tolerant, distributed, decoupled, etc, etc. architecture. That sounds good on paper. Message queues ...

Read More »

Step By Step Path to Becoming a Great Software Developer


I get quite a few emails that basically say “how do I become a good / great software developer?” These kinds of emails generally tick me off, because I feel like when you ask this kind of question, you are looking for some magical potion you can take that will suddenly make you into a super developer. I suspect that ...

Read More »

Want to take your Java skills to the next level?

Grab our programming books for FREE!

Here are some of the eBooks you will get:

  • Spring Interview QnA
  • Multithreading & Concurrency QnA
  • JPA Minibook
  • JVM Troubleshooting Guide
  • Advanced Java
  • Java Interview QnA
  • Java Design Patterns